Incandescent gas-lamp.



F. YUKEL.

INCANDESCENT GAS LAMP.

APPLICATION men JULY 6. 1914.

1,176,509. Patented Mar. 21,1916.

2 SHEETS-SHE l.

WITNESSES INVENTOR fazww. M

THE COLUMBIA PLANOGRAPH c0., WASHINGTON. D- C- F. YOKEL.

' INCANDESCENT GAS LAMP.

4 I I APPLICATION FlLED JUL Y 5, 'l9l4. 151 76,509, Y Patented Mar. 21, 1916.

2 SHEETSSHEET 2. 70.

FGLZ. -73

X- MM THE COLUMBIA PLANOGRAPH c0., WASHINGTON, n. C.

FRANK YUKEL, 0F BROOKLYN, NEW YORK, ASSIGNOR TO PITTSBURGH LAMP, BRASS &

GLASS COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPGBA'IION OF NEW JERSEY.

INCANDESCENT GAS-LAMP.

Specification of Letters Patent.

Patented Mar. 21, 191.6.

' Application filed July 6, 1914. Serial No. 849,040.

To all whom it may concern:

Be it known that 1, FnAnK YOKEL, a citizen of the United States, and resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Incandescent Gas-Lamps, of which the following is a specification.

My present invention relates to improvements in lncandescent gas lamps, and more particularly to lamps of this character operating under the inverted mantle system, being especially'adapted for indoor use.

The objects of my invention are to provide a structure of this type which is simple and efficient, durable in construction, readily assembled, and which can be manufactured at a relatively low cost.

Further objects are to provide various features of construction and arrangement combinedly operating to produce the above results, such features including: (1) Providing an air admission element at'a point where it will actito heat the admitted air preliminary to its entrance into the mixing tube, the entrance of the air being controllable, and at the same time preventing .admission of the waste products of combustion to such element. (2) To provide simple and efficient means for regulating the position of the valve for controlling the admission of the gas to the mixing tube. (3) To provide an air-admission controlling valve structure of simple character, and positioned without and independent of the conduit for the products of combustion. l) To form the guard for the air admission inlets integral with a wall of the combustion products conduit, the air admission element, by reason of its location between and connecting the gas admission means and the mixing tube,practically supporting the walls of the conduit, thereby providing a simple construction in which the guard is fixedly positioned relative to the element. (5) To provide an improved gas regulator fitting.

To these and other ends, the nature of which will be readily. understo'oclas the invention is hereinafterdisclosed, said invention consists in the improved construction and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out lnthe appended claims.

In the accompanying drawings, in which similar reference characters indicate similar parts in each of the views, Figure 1 is a central vertical sectional view taken through a lamp of this type embodying the several features of my'invention. Fig. 2 is a similar view taken on a plane at right angles to the plane of Fig. 1. Fig. 3 is a top plan view, the gas inlet pipe being shown in section. Fig. 4 is a horizontal sectional view taken on line 4-4 of Fig. 2. Fig. 5 is a similar view taken on line 55 of Fig. 2. Fig. 6 is a similar view taken on line 6-6 of Fig. 1.

Referring to the drawings, 10 designates a gas supply pipe to which the lamp is adapted to be secured, the connection being with the gas regulating fitting 11, shown more particularly in section in Fig. 1, preferably of an angular form to provide an opening 12 for the purposepresently described. T he upper and lower sides of the fitting are in the form of tubular projections internally threaded, the upper projection being secured to the supply pipe 10 through which the gas entersinto a channel-which divides, one portion 13 passing through one of the sides of the fitting to an opening leading to the lower projection, said channel portion being provided with a cut-off 1a of any preferred construction adapted to be operated by suitable means such as a wheel 15, said valve controlling the admission of gas to the lamp, the other divided portion of the channel leading in the opposite direction to a projection 16 to which the pilot burner structure, indicated generally at 17, is secured, said structure including an adjusting member '18 for controlling the amount of gas to be delivered to the pilot burner.

Threaded to the lower projection of the fitting is a tubular member 19, preferably formed in two parts, with the lower part 19 contracted to form a shoulder, the contracted portion being externally threaded, while the tube opening is contracted at its lower end to form a valve seat 20 adapted to cooperate with a needle valve 21 carried by a threaded'member 22, the head of which extends into the opening 12, the threaded portion being threaded to the lower portion of the fitting in axial alinement with the open ing through the lower projection of the fitting, this member 22 acting'as the part which is manipulated to provide for the adjustment of the needle to control the supply of gas to the mixing tube or chamber presently referred to. A spider 21 preferably seated between the two sections oftube 19, serves as a guiding member for the valve 21.

In view of the fact that it is diliicult to manufacture and assemble theconnections between the fitting 11 and the seat so as to accurately provide the same distance be tween the outlet of channel 13 and the valve seat in all cases, I provide for adjustment of the valve 21 in the member 22, thus not only overcoming inaccurate manufacturing and assembly, but at the same time provide a means for meeting variations in gas quality, such as differences in specific gravity and heat unit combustion in the gas employed in 7 different communities. A preferred way to provide this result is to externally thread the valve2l at the proper point and adjustably thread it in the member 22, this arrangement providing ready adjustment to locate the needle point at the proper normal position relative to its seat,the position depending on the quality of gas, and at the same time prevent gas leakage. By this arrangement, the question of variation in distance between the seat and channel is immaterial, s nceit is necessary only to position the member 22 at the point which practically determines the inner extreme of its threading mo ement. and then adiust ng the, needle '21 in the member 22 bybringing the needle pont into engagement w th its seat, leaving the parts in proper poslt'on for operation,

the member 22being manipulated either by hand or a simple tool, the head being provided with openings to permit of ready manipulat on. the threading movement in an outward direction moving thevalve away from-its seat. and thus perm tting of a proper adiustment of the flow of gas from the end of the tube 10.

Threaded to the contracted end of the tube 19 is an air-adm ssion element preferably in the form of a transverse draft fitting 24, the fitting having open ends, as shown in Figs. 2 and 4. these ends being located outside of the walls of the conduit for the proclrcts of combustion he einafter referred to. The lower portion of the fitting is provided with an internally threaded collar which is adapted to receive the threaded end of a tubular member 25, the axis of which extends through the valve seat 20. this member 25 having its lower end adapted to receive a pipe 26. said pipeand tubular member 25 form ng the mix ng tube for the air and gas, the lower end of said pipe carrying a connection 27 to which in turn the support 28 or the mantle 29 is secured.

The conduit for the products of combustion is formed of a p uralitv otmembers, the upper of which. indicated at 30. is prefer-ably in the form of a bonnet havingperforations 30 at suitable points in its side walls, the upper end being imperforate, the

side wall being provided-with a suitable;

shoulder30 adapted tocontact with-the upper end of the intermediate conduit member 31, the latter being carried by thefitting 24, this arrangement securing the bonnet member 30 between an annular shoulder '19 of the tube 19 and the section 31. The bonnet member 3,0, below theshoulder 30 is expanded to form a guard member 32, said member having. its, lowen edge spaced from the section 31 to'provide for the admission ofair; and since the ends of. the fitting 24 project through the section 31 into the space within the guard member 32, this annular' opening provides a supply of air to the fit-- ting 24. One ofthe difficulties'in connection with this type of devices has been the fact that where an attemptis madetocontrol the admission of air by the use of a i valve of gate type, this valve has been so positioned as to permit the waste gases or products of combustion to enterthe open-' ings through which the valves extend, thus introduclng into the a1r and gas mixture a portion of the waste products. By providing the annular space formed by the use of the guard member 32, and projecting the ends of the fitting 24c thereinto a distance sufiicient to permit the valves to be located within this space and projectinto the fitting beyond the path of the products :of combus tion, the fitting maybe formed imperforate within the conduit and thus eliminate any l1ab1l1ty of obtalnmg such defective HEX-'- ture. ,A valve structure of this type is 33 will l e moved to shift the ends 33 with.

in the element 24, and thus vary the area of the openings through which. air may enter.

As will be readily understood, the element 24: is located in the pathof the prodnets of combustion and thereby becomesheated, causing the air Whichis drawn thereinto to be heated prior toits admixture .with the gas entering from the member 19.

And since this element is entirely imperforate within such path, it will be readily understood that the air which is thus pre heated is air drawn from outside of the conduit. Furthermore. since the member 33 1s located entlrelyoutside of the conduit and is thus in the path of the cooler entermam-5.09

ing air, this member 33 will not beqheated by the products and will thus be less' liable to damage.

I By constructing the bonnet and;- guard members integral, it will be understood that the cost of manufacture is lessened, and a surety is provided of an exact-positioning of the guard member to' provide the desired results with respect to the element 2 1, this element, in connection with the shoulder 19, fixedly securing the bonnet in its proper position. I I

86 designates the lower member of the conduit having a suitable cross-sectional configuration, that shown in the drawings being preferred, this section'having a. spiderlike structure 36 with a central collar 36* surrounding the pipe26 and supported on a. sleeve 37 held in position by a nut or member 88 threaded on the pipe 26 above the connection 27. The upper end of-the section 36 is formed with an extension 36 which is adapted" to extend within the section 31, as shown in Figs. 1 and 2, the base of such extension being in the form of a shoulder which abuts said section 31. By this arrangement it will be readily seen that the section 36 is supported by the pipe 26,

the shoulder of said member 36' being brought into proper position with respect to the section 31 by manipulating the-end or member 38. Since the pipe 26 is in turn supported from the element 2 1, it will be readily understood that the entire structure of the conduit for the products ofcombustion is carried by said element 24:. The lower portion of the section 36 is adapted to secure the usual globe 39 in a well known manner, and said section is also provided with an annulus 40, best shown in Fig. 5, said annulus being provided with bent-up portions 40 to provide keyways for the positioning of an inner globe 41.

The operation of the construction shown will be readily understood, the opening of the valve 14 permitting the gas to enter the tube 19 and pass "through the element 2 1 into the mixing tube in quantities regulated by the needle valve 21, the air being admitted in regulated quantities from outside of the products conduit through the annular opening at the bottom of the guard 32, being heated during its passage to the mixing tube, the admixture passes to the mantle where it is ignited by the pilot burner which is in constant communication with the gas supply exceptingwhen the channel leading thereto is closed by the threadedmember 18, the products of combustion passing upwardly between the sections 36 and 31 into the bonnet 30 and passing out through the openings 30*. V v

The construction and relative arrangement of the drawings is exceedingly simple, the a con-nections for-the mixture being substan-' combination,

tially gas proof-through being threaded,

while the walls for the conduit are free from either threaded-or soldered connection. In

addition, the air supply is free-from the the mantle. It will also be readily understood that theparticular form of the gas regulatingfitting is such as to make ready adjustment-of the needle valve possible due to*accessibility to the parts by which such adjustmentis had.

While I have shown and described the preferred embodiment of the invention, it

- will be understood that changes in the modifications there n be required or desired to meet the exigenciesof use, and I desire to be understood as reserving the right to make such changes ormodifications in so far as Y the same may fall within the spirit and scope of'the invention as expressed in the accompanying 1 claims.

Iclaimz -1, In an incandescent gas lamp and in combination, controllable gas-admission means, a mixing tube, a mantle, a controllable air-admission element connecting the gas admisslon means and said Imxmg tube and forming the support for the latter, a sectional conduit for the products of combustion, said air-admissionelement extending through the walls of the conduit, and means above and below said element for retaining the sections in assembled relation.

2. In an incandescent gas lamp and in controllable gas admission means, a controllableair-admission element carriedby said means, a mantle. a mixing tube between saidelement and the mantle, a conduit'for the products of combustion,

;said' conduit having a closed end carrying the products outlet, and a guard overhanging the entrance to said element, said guard having its free end inturned.

3. In an incandescent gas lamp and in combination, gas-admission means, a controllable air admission element carried by said means, a mantle, a mixing tube between said element and the mantle, permanently-exposed means for regulating the admission of gas to said tube, a sectional conduit for the products of combustion, said element comprising a draft fittlng extendmg transversely of the conduit, said fitting having .open ends outside of the conduit walls, and

controlling means for the air supply intersecting the direction of length of said element at substantially right angles and movable in the plane of such intersection, said means being positioned externally of said conduit.

1- i candescent gas lamp and in said element comprising a draft fitting extending transversely of the conduit, and forming the connection between the gas admission means and the mixing tube, said fitting having open ends outside of the con-' duit walls, means above and below said fitting for positioning the conduit relative thereto, and controlling means for the air supply positioned externally of said conduit, and common to said fitting ends.

'5. In an incandescent gas lamp and in combination, controllable gasadmission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, and a conduit for the products of combustion, said conduit having a bonnet-shaped closed end carrying the products outlet, the walls of said conduit being sectional, said bonnet-shaped end carrying and forming the sole support for a guard overhanging the entrance to said element, said guard having its free end inturned.

6. In an incandescent gas lamp and in combination, controllable gas-admission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, a sectional conduit for the products of combustion, said conduit having a bonnet-shaped section carrying the products outlet, and a guard overhanging the entrance to said element, said guard having its free end inturned and being formed integral with the bonnet-shaped section.

7. In an incandescent gas lamp and in combination, controllable gas-admission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, a conduit for the products of combustion, said conduit having a bonnet-shaped closed end carrving the products outlet, the conduit walls being formed sectionally, the

bonnet-shaped section being expanded annularly to form a curved overhanging guard for the entrance to said element, the free edge of said guard being spaced from the exterior of the conduit wall to provide an annular space in the plane of the element, and a restricted entrance thereto below the element entrance.

8. In an incandescent gas lamp and in combination, controllable gas-admission means, an air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, a conduit for the products of combustion,

said gas-admission means including a gas regulating fitting of angular configure tion in longitudinal section andhaving an opening therethroug-h, sald-fittl-ng forming combination,

a supporting member for and within said means and carying both a valve-controlled channel leadmg toward said element and a 'channelleading to the pilot burner, both channels being in open communication with the gas supply within the fittin 9. In an incandescent gas lamp and in combination, controllable gas-admission means, an air-admission element carried by said means, a mantle, a mixing tubebetween through, said fitting forming a supporting memberfor and within said means and carrying a valve-controlled channel leading toward said element, aj channel leading to the pilot burner, and a valve for controlling said latter channel.

10. In an incandescent gas lamp and in combination, controllable said means, a mantle, a mixing tube between said element andthe mantle, a conduit for the products of combustion, saidgas-ad- IIllSSlOIl means comprising a gas regulating fitting having a lateral opening outside of sa1d conduit and also having a controllablegas admission means, an alr-adnnssion element carried by;

gas conduit leading toward said element, in

the direction of lampaXis, a valve seat adjacent said element, a regulating needle valvev co'ciperating with said seat, and a headed adjusting member supporting said valve, said head being located within said fitting opening.

11. In an incandescent gas lamp and in controllable means, an air admission elementcarried by saidelement and the mantle, a conduit for the products of combustion, said gas-admis-f 'means, and an air-admission element carried by said means, said gas-admission 'means comprising a gas regulating fitting having" a lateral opening and also havlng alcontrollable gas conduit leading toward said element, a valve seat adJacent said element,

a regulating needle valve cctiperating with said seat, a headed-adjusting.- member supgasadmission V g said means, a mantle, a mixing tube between porting said valve, said head being located within said fitting opening, and means for adjusting the valve longitudinally of said member, whereby variations in distance between said conduit'and the seat may be met without affecting the normal operation of said threaded member.

18. In an incandescent gas lamp and in combination, controllable gas-admission means, a'controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, a conduit for the products of combustion, said air-admission element comprising a draft fitting extending transversely of the conduit and having open ends located extcrior of said conduit, and means movable in directions angular to the flow path of the incoming air and intersecting the axis of said fitting exterior of the conduit for controlling the admission of air through said open ends. I

14. In an incandescent gas lamp and in combination, controllable gas-admission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, a conduit for the products OI combustion, said air-admission element comprising a draft fitting extending transversely of the conduit and having open ends located exterior of said conduit, and means movable in directions angular to the flow path of the incoming air and intersecting the axis of said fitting exterior of the conduit for controlling the admission of air through said open ends, said latter means comprising a member carried by a threaded stem and having portions adapted to extend into said fitting on the line of intersection.

15. In an incandescent gas lamp and in combination, controllable gas-admission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, a conduit for the products of combustion, said air-admission element comprising a.

comprising a curved member located exterior of the conduit and carried by a threaded stem, said member having its ends formed 7 to extend into said fitting on said lines of axis intersection.

16. In an incandescent gas lamp and in combination, controllable gas-admission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, said gas-admission means including a controllable gas channel leading toward said element, a valve seat in the gas path, a neeolle valve adapted to cooperate with said seat to regulate the gas supply, adjusting means for moving said valve with respect to its seat, and means for adjustably positioning the valve relative to said adjusting means.

17. In an incandescent gas lamp and in combination, controllable gas-admission means, a controllable air-admission element carried by said means, a mantle, a mixing tube between said element and the mantle, said gas-admission means including a controllable gas channel leading toward said element, a valve seat in the gas path, a needle valve adapted to cooperate with said seat to regulate the gas supply, and adjusting means for moving said valve with respect to its seat, said adjusting means and the valve having a threaded engagement to permit the valve to be adjustably positioned in said adjusting means.

In testimony whereof I ailix my signature in presence of two witnesses.

FRANK YOKEL.

Witnesses:

W. G. DooLrrTLE, F. E. GAITHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

